Ceramic foam filter molten metal filtration with its characteristics of light-weight, high mechanical strength, large specific surface areas, high porosity, excellent thermal shock resistance, erode resistance, high-performance, competitively priced, is designed for filtering impurities from liquid metals. With the distributing pores net structure, they are able to increase the surface areas and absorb the sinter, the liquid metal becomes purer, waste quality problems such as sand pore and air pore are much less. And the cast quality becomes much better.
Ceramic foam filter is widely used as molten metal filtration in metallurgical and foundry industries. This product has the characters of excellent resistance to thermal shock, high strength, high porosity, and specific surface area. With its unique straight channel honeycomb designs, it can increase the specific surface area between molten metal and ceramic filter, thereby improving its adsorption and capturing tiny impurities ability, so as to get rid of non-metal impurity and gas, make the metal liquid steady, purify metal liquid. It can not only reduce casting cost, but also improve casting quality.
It’s very important to choose and design a ceramic foam filter model & filter seat correctly according to casting types and pouring weight. The general principle is that the whole gating system should be a system without pressure to ensure that the molten metal liquid filling mold smoothly. The ratio of the sectional area will be the main point.
Ceramic Foam Filter Molten Metal Filtration Advantages
Removal of inclusions makes the metal more fluid, resulting in easier mold fill, better cast structure, and better thin section castability.
Reduced Mold and Die Wear
Removal of inclusions and other nonmetallic debris from the melt reduces die soldering and mold-metal interaction, which degrades the mold surface and service life.
Longer Tool Life
Oxide as well as intermetallic inclusions create “hard spots” that damage tools in machining and finishing operations. Ceramic Foam Filter reduces tool wear and increases productivity.
Inclusions nucleate porosity, create hot tears during solidification, cause surface defects that mar appearance, and often reduce mechanical properties. In many cases, Ceramic Foam Filter cuts rejects from such causes to virtually zero. Improvements in yield to near 100% and reduced reject rates to at or near 0% are common.